by John Lukach
Amazon Web Services (AWS) Cloud Development Kit (CDK) 2.165.0 released Garbage Collection (GC) on unused assets stored in the resources of your bootstrap stack
https://docs.aws.amazon.com/cdk/v2/guide/ref-cli-cmd-gc.html
Cleaning up Elastic Container Registry (ECR) images is now much more manageable!
cdk gc --unstable=gc --profile 4n6ir --bootstrap-stack-name=StackSet-USE1-4n6ir --type=ecr